Civil Engineering > GATE 2017 SET-2 > Mathematics
Let w = f(x, y), where x and y are functions of t. Then according to the chain rule, dw/dt is equal to
A
(dw/dx)(dx/dt) + (dw/dy)(dt/dt)
B
(∂w/∂x)(∂x/∂t) + (∂w/∂y)(∂y/∂t)
C
(∂w/∂x)(dx/dt) + (∂w/∂y)(dy/dt)
D
(dw/dx)(∂x/∂t) + (dw/dy)(∂y/∂t)

Correct : c

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